Home decoration, want to feel when the window windows and windowsill too close, you need to drop the windowsill down 2cm, want to do it yourself, afraid of the window seal is not good, and generally what tools to hit the windowsill ah? Electric ho?
I suggest you first understand the structure of your home, and asked the next property, windowsill can not hit. Some of the windows of the building will involve the structure. Generally with the impact drill.
The windowsill are cemented and of great strength. If you want to drop a few centimeters better to use a manuscript or hammer. If there is no power tools, then only with chisel and hand hammer slowly smashed. The chisel is best to use the pointed.
The strength of the cement on the windowsill. In the best power hit a few centimeters issue or electro-hydraulic hammer. If there is no electric tool, if only slowly with chisel, hand hammer hit. Sharp chisel.
